PDF malware analysis — malicious · be2f758c3746aecf

MALICIOUS

PDF

70.9 KB Created: 2020-12-28 06:06:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: c0f1aa1ff909e28f42a291a07129e8a3 SHA-1: 9d5663c1c5073dea0b3a46cdf0ea8e8b6b865fcc SHA-256: be2f758c3746aecf07c5ceed2338b2f315338aedb8fcee6c15a667e58f2099fd

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://traffset.ru/strik?utm_term=markiplier+e+meme+video PDF link annotation
- https://cdn-cms.f-static.net/uploads/4417414/normal_5f9d19609acb3.pdfIn PDF document text
- https://samoxaposem.weebly.com/uploads/1/3/4/3/134361226/majarujol-pipokoguwe-gululorobutisim.pdfIn PDF document text
- https://joguwezur.weebly.com/uploads/1/3/4/5/134500750/9822802.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450047/normal_5fa5691d16a53.pdfIn PDF document text
- https://cdn.sqhk.co/fuzokikili/e8lgAgf/biggest_super_chat_on_youtube.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383917/normal_5f8f6a7a5e9d3.pdfIn PDF document text
- https://vunozeguwogiwe.weebly.com/uploads/1/3/4/7/134745761/nomumug.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/mokixetat/japan_rail_guide_book.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6afcd8c1-a29b-4fb4-8bcf-b467cc32a813/pupomukodesobufefuwu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/82c4ffa6-cdff-4597-8b85-f7797479ca68/xewipadidezunajekaleso.pdfIn PDF document text
- https://s3.amazonaws.com/gavobawum/baltimore_ravens_injury_report_week_3.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d769.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD769	5056 bytes
SHA-256: `e13bca26bf192acfe3f9af00d94c813443dbd1fe02628c77e7f59e21c40496d5`
`font_01_sfnt_off0000e899.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE899	11272 bytes
SHA-256: `81e84af2412ef8eb2459496fee0458303316c44982824a2d53f31c532c436758`

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